Bill Nye has almost become geek royalty over the years. Not only did he make a guest appearance on CBS’ TV show The Big Bang Theory, much to everyone’s surprise he participated in the hit reality show Dancing with the Stars giving a whole new meaning to doing the robot.

The bow-tie clad comedic-scientist accepted an invitation from Ken Ham, the founder of the Creation Museum, to debate whether creation model is viable in today’s scientific era.

It’s a long one at around two and a half hours for the actual debate but well worth a bookmark for when you have some time: